Bezos has more than four times as much money as his alma mater, Princeton University.

Bezos graduated from Princeton University in 1986 with a degrees in electrical engineering and computer science. As of March 2017, Princeton’s endowment was $22.8 billion, less than one-forth the amount of Bezos current net worth.

Although, he has returned some of his good fortune to the Ivy League. In 2011, Bezos and his wife, also a Princeton grad, donated $15 million to the university to establish a center in the Princeton Neuroscience Institute.

He’s one of the top 25 largest landowners in America.

According to the Land Report, Bezos was 25th largest landowner in the US. His largest property by size is the 30,000-acre ranch in Van Horn, Texas, that serves as the base for Blue Origin, Bezos’ private space company.

Bezos’ Seattle-area mansion was worth less than 1% of his fortune when he bought it in 1998.

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Stephen Brashear/Getty

In 1998, Bezos purchased a 5.5-acre waterfront estate in Medina, Washington, a suburb of Seattle, for $10 million. His net worth at the time – one year after Amazon went public – was $1.6 billion, landing him on Forbes’ annual list of the richest people in the world for the first time. The mansion was worth just 0.625% of his total fortune.

Since then, Bezos and his wife have acquired several properties surrounding their estate, creating a compound spanning more than 10 acres. Current estimates value the home at $70 million.

He’s building the biggest home in Washington, DC (aside from The White House).

Back in January, Bezos reportedly dropped $23 million on a pair of mansions – formerly a textile museum – in DC’s exclusive Kalorama neighborhood with plans to turn them into the largest single-family residence in DC with 27,000 square feet of living space.

The Obamas and Ivanka Trump and Jared Kushner are neighbors.

Warren Buffett was worth $30 billion when Bezos became a billionaire — now the Amazon founder is richer.

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Getty Images / Alex Wong

Bezos became a billionaire in 1998, when Amazon went public. At the time, Buffett was the second richest person in the US, with a net worth of nearly $30 billion.